The controversy continues over the possibility that frequent exposure to electromagnetic fields from cell phones and other cordless devices increases the risk of brain tumors and cognitive dysfunction.

The controversy continues over the possibility that frequent exposure to electromagnetic fields from cell phones and other cordless devices increases the risk of brain tumors and cognitive dysfunction. That’s been hard to prove definitively, and many mainstream researchers dismiss the risk as alarmism.

But an international collaborative team of Canadian, US, and European researchers recently discovered something that may prove harder to dismiss: in some individuals, the 2.4 GHz pulsed signals emitted by a cordless phone system reliably produce measurable and clinically significant disruptions in cardiac rhythm.

In an elegantly series of experiments designed and led by Magda Havas, PhD, of the Environmental & Resources Studies Department at Trent University, Canada, researchers showed that 40% of a cohort of 25 generally healthy volunteers had marked increases in heart rate, arrhythmias, and other disturbances in heart rate variability (HRV) following exposure to a cordless phone base station actively emitting 2.41 GHz pulsed microwave signals.

Fields of this frequency are also emitted by many wireless routers and other Wi-Fi technology.

This is the first objective evidence of cardiovascular effects associated with wireless EMF exposure, and it lends quantitative vindication to the concept of “electrohypersensitivity,” the sense some people have that they become physically ill when close to EMF fields from cell phones, microwave ovens, computers, fluorescent lighting systems, and Wi-Fi networks.

Source: Holistic Primary Care, December 2010
By Erik Goldman / Editor in Chief – Vol. 11, No. 4. Winter, 2010